this is a comparison of the two on an '87 firebird with a 305. the flowmaster has a harmonized sound because of the dual outlet so try to keep that in mind. unfortunately im stupid and dont know the brand of glasspack nor the series of muffler.
K Car With a Glasspack
One day dad and i decided to put a glasspack on my 1987 Dodge aries k car. it went along quite roughly, but ended up making a good lot of noise. :D...which was what we were aiming for...
Loud Chevy 350 Straight Glasspack Exhaust
1991 Chevrolet 1500 Silverado reg cab short box 4x4, 350 5.7L TBI, posi rear end, 20k on built trans 70k on motor. 3in glasspack at the downpipe and 10 feet of 2 inch O.D. straight back after that. no cats. This vid was from the day after install. Not even broken in.
Flowmaster Muffler Comparison : Muffler Shootout 2
Engine Specifications : Small Block Chevy 355cid
•2.02 1.60 cast iron heads
•Comp Cam Extreme Energy
•Be Cool Radiator
•Dual Plane intake manifold
Flowmaster Products :
•2.5" Universal Scavenger pipe (pn. 15932)
•Header Collector Ball Flange kit (pn. 15938)
•Flowmaster mufflers and Hushpower mufflers :
•50 Series Delta Flow
•50 Series Low Profile Delta Flow
•Super 44 Series
•40 Series Delta Flow
•Super 10 Series
•Hushpower HP2 "Shortie"
For ANY Technical Assistance or questions about the video, please call 1-800-544-4761. Thank You and hope you enjoyed the video!
Flowmaster Muffler Comparison
A raw test of 7 different Flowmaster mufflers on one motor.
The Motor -
Small Block Chevy 406, 11:1 compression, Crane Solid Roller Camshaft, Brodix heads with 2.05- 1.60 titanium valves, Eagle 4340 Crank, Eagle H beam Rods, Manley Forged pistons, Victor Jr Intake manifold, 850 Holley DP, K&N air filter, Moroso 7 qt. pan, 1 7/8 headers, BE COOL radiator with dual 13 inch fans, MSD distributor, MSD coil and MSD 6AL box.
Exhaust - Flowmaster 3 inch Scavenger Pipe
General Lee 69 Charger with Flowmaster 40's Exhaust system: 2.5" dual with Flowmaster 40's is way to loud for me! Resonates badly from interior and is loud enough to anger the neighbors just getting out of the driveway. I've switched to Flowmaster 50 SUV and will post results here soon. Still sounds great but interior sound level is much improved!
X-Pipe Sound Comparison -- Magnaflow, FlowMaster, Glass Packs
X-Pipe Exhaust Comparisons (No Resonator)...
UPDATE: if the music bothers you, see this version http://www.youtube.com/watch?v=sEsfeSvinaI&t=1m8s
This video ONLY includes the muffler comparisons with NO RESONATOR to compare the sound of dual Magnaflow, Flowmaster, and Glass Packs on a 2011 Camaro SS. The full video including test WITH the resonator is also available.
Get a special deal on an installed custom CamaroExhaust system from Ripley's Muffler & Brakes at http://ripleysmufflerandbrakes.com/Camaro-Exhaust.htm
The CamaroExhaust comparisons are:
Glass Packs, No Resonator (replaced with stainless X-pipe)
FlowMaster, No Resonator (replaced with stainless X-pipe)
Magnaflow, No Resonator (replaced with stainless X-pipe)
Magnaflow Bullet-Style, No Resonator (replaced with stainless X-pipe)
Which do you think is the best? Leave a comment.
You also have other custom Exhaust options like mandrel bent pipes for better air flow and more horsepower http://ripleysmufflerandbrakes.com/mandrel-bends.htm
Install Magnaflow Exhaust Systems on a Chevy Silverado - AutoAnything How-To
Free Shipping on all Magnaflow Exhausts: http://autoanything.me/ra4tHQ
Magnaflow Exhaust systems sound great and add power to your vehicle. Basic hand tools are needed. Installation is straightforward: it can take several hours to complete, but the effort is worth the reward! This video demonstrates how to install Magnaflow Exhaust on a Chevy Silverado, but installation is similar for most other vehicles.
Check out all Magnaflow Exhaust products: http://www.autoanything.com/Exhausts-mufflers/20A50221A1.aspx
Or browse our huge selection of Exhaust systems, mufflers and tips: http://www.autoanything.com/Exhausts-mufflers/10A50209.aspx